# Uniswap Launches Ethereum Mainnet Hook With Dynamic ETH/USDC Fees By Simon Yoon Canonical URL: https://www.tokenpost.com/news/technology/32114 Published: 2026-10-14T22:57:22.000Z Updated: 2026-10-14T22:57:22.000Z Section: Technology > VolatilePair adjusts fees by trade direction and price movement, aiming to reduce losses for liquidity providers. Uniswap launched its VolatilePair Hook on Ethereum mainnet for ETH/USDC, introducing fees that change with price movements and trade direction to help reduce losses for liquidity providers. The hook recalculates its dynamic fee on each trade, replacing a fixed rate. When Ether (ETH) rises, buyers pay higher fees and sellers pay lower fees. When ETH falls, those adjustments reverse. After a large price fluctuation, trades that drive the price back toward its prior level face a temporary additional fee. The design aims to reduce losses liquidity providers can incur as prices move. Uniswap previously published a [StablePair Hook deep dive as USDG liquidity expanded on Arbitrum](). ## Links in this article - [StablePair Hook deep dive as USDG liquidity expanded on Arbitrum](https://www.tokenpost.com/news/technology/31256)